Edgar will be stepping in for the injured Erik Koch, who was supposed to challenge Aldo.

“Obviously, we've had a rough couple of weeks here at the UFC, and then sure enough, I walk in to work today, and Erik Koch is hurt. But Frankie Edgar, being the stud and the warrior that he is, steps up and accepts this fight,” said White in Yahoo! Sports.

Edgar, however, would have to go down to the featherweight level to face Aldo.

He last fought and lost as a lightweight against Benson Henderson on August 11.

White was also glad that Edgar was willing to fight, avoiding a fiasco that led to the cancellation of UFC 151.

Last week, Dan Henderson pulled out of a September 1 title fight against champion Jon Jones.

White offered Chael Sonnen as a replacement for the injured Henderson, but Jones declined.

Jones cited that he didn't want to fight a different opponent on 8 days’ notice.

As a result, the event was scrapped and Jones will now defend the belt against Vitor Belfort on September 22 in UFC 152.